LS-TaSC 3.1

Version 3.1 was started late in 2013 focusing on updating the constrained design optimization algorithm. It contains the following major new features:

• Multi-point derivative scheme considering the derivative of the response with respect to the part masses and load case weights
• Optimization using mathematical programming and the multi-point derivatives
• Generalized constraints:
  • All LS-Dyna® output, similar to LS-Opt®
  • Mathematical expressions
• User-defined results
• Iso-surface plots of a design
   

Some minor features are:

• Element results filter radius can now be set relative to the element dimensions. It used to be global. The default was changed to be relative to the element.
• The *INCLUDE keyword is supported.
• The topology algorithm is restricted from deleting too many elements per iteration.
• The logic of the solid/void schemes has been clarified.